vhci_hcd: default hub control req: 0000 v0000 i0001 l50287 kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 18919 Comm: syz-executor3 Not tainted 4.20.0-rc1+ #109 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:rds_recv_rcvbuf_delta.part.3+0x14a/0x3f0 net/rds/recv.c:103 Code: c1 ea 03 80 3c 02 00 0f 85 6e 02 00 00 4c 8b a3 c0 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 2c 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 00 RSP: 0018:ffff88018b39efc0 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff8801be730780 RCX: ffffc9001061b000 RDX: 0000000000000005 RSI: ffffffff8749949b RDI: 000000000000002c RBP: ffff88018b39eff8 R08: ffff8801ce388300 R09: ffffed0031673ded R10: ffffed0031673ded R11: 0000000000000003 R12: 0000000000000000 R13: ffff8801be730ca4 R14: 000000000002e0c0 R15: ffff8801cbe88b00 FS: 00007fa7bf29b700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33a27000 CR3: 00000001bf445000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rds_recv_rcvbuf_delta net/rds/recv.c:379 [inline] rds_recv_incoming+0x8bb/0x1400 net/rds/recv.c:379 rds_loop_xmit+0xf3/0x2a0 net/rds/loop.c:96 rds_send_xmit+0x13ef/0x2bb0 net/rds/send.c:355 rds_sendmsg+0x290f/0x3180 net/rds/send.c:1338 sock_sendmsg_nosec net/socket.c:621 [inline] sock_sendmsg+0xd5/0x120 net/socket.c:631 __sys_sendto+0x3d7/0x670 net/socket.c:1788 __do_sys_sendto net/socket.c:1800 [inline] __se_sys_sendto net/socket.c:1796 [inline] __x64_sys_sendto+0xe1/0x1a0 net/socket.c:1796 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fa7bf29ac78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 0000000000457569 RDX: 0000000000000241 RSI: 0000000020000a00 RDI: 0000000000000008 RBP: 000000000072bf00 R08: 000000002069affb R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa7bf29b6d4 R13: 00000000004c3c11 R14: 00000000004d5e80 R15: 00000000ffffffff Modules linked in: ---[ end trace ffda6d1117cbc209 ]--- RIP: 0010:rds_recv_rcvbuf_delta.part.3+0x14a/0x3f0 net/rds/recv.c:103 Code: c1 ea 03 80 3c 02 00 0f 85 6e 02 00 00 4c 8b a3 c0 04 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d 7c 24 2c 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 00 RSP: 0018:ffff88018b39efc0 EFLAGS: 00010007 RAX: dffffc0000000000 RBX: ffff8801be730780 RCX: ffffc9001061b000 RDX: 0000000000000005 RSI: ffffffff8749949b RDI: 000000000000002c RBP: ffff88018b39eff8 R08: ffff8801ce388300 R09: ffffed0031673ded R10: ffffed0031673ded R11: 0000000000000003 R12: 0000000000000000 R13: ffff8801be730ca4 R14: 000000000002e0c0 R15: ffff8801cbe88b00 FS: 00007fa7bf29b700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b33a27000 CR3: 00000001bf445000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400